CZ9903764A3 - Guide mechanism for a door with flexible diaphragm - Google Patents

Abstract

The invention concerns a device comprising on the door (1) opposite vertical members (2, 3) straps (6a, 6b) facing each other to constitute on each vertical member a guide rail (6c) for the flexible roller shutter (5) and horizontal crosspieces (5b), said straps being stretched and each fixed between two end points (6f, 6h; 6g, 6i) integral with the vertical members (2, 3) to enable each strap, under the pressure of an external force, to be elastically deformed and return to its initial position without deteriorating.

Description

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible curtain guiding device comprising horizontal transverse members, thereby forming a panel for a motor driven motor driven flexible curtain, which panel can quickly move between a closed position and an open position.

The guide device according to the invention is particularly intended for doors in which the flexible curtain is either wound on a drum or is folded in an organ style into a given space.

BACKGROUND OF THE INVENTION

Flexible curtain doors are known which have two parallel parallel metal supports in the shape of U or C profiles, which can be fixed either directly into the concrete frame to which the door is fixed or by means of flexible components placed between the vertical door frames of the concrete frame and metal supports as described, for example, in European patent application EP 92 909384.

A straight guide track is formed on each metal support in which the side edges of the flexible diaphragm move as it moves between the closed position and the open position.

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The guide tracks are formed from U-shaped profiles in which sliding tracks are placed to guide the lateral edges of the flexible screen in each direction. Each guide track is provided with a sliding track, the inner profile of which is roughly square, with one edge provided with a slot extending over the entire height of said guide track to move the flexible screen.

The guide tracks are made of semi-flexible material, so that when a tensile force is exerted on the flexible curtain, the lateral edges of the flexible curtain are released from the guide tracks.

This type of flexible curtain door has some drawbacks, in particular in that it is not possible to access the inner walls of the slideways mounted on each guideway so that they cannot be cleaned. If such doors are installed in rooms where food products are processed, it is very important to clean the doors and especially their guideways very thoroughly after each working day. The design of the guide rails described above suggests that this procedure is absolutely unthinkable without the overall dismantling of the door.

In addition, the guide rails have a very low impact resistance, since the semi-flexible material from which their sections are made is weakened by a slot formed along the entire height of the guide rail.

Slides are usually made from an open U-shaped section whose width is the same from top to bottom, a solution that is unsuitable for the way this door operates.

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Thus, for a door with a flexible door curtain consisting of an organ-like manner, these slideways must be able to accommodate a considerable amount of folds when the door is open, the passage which is necessary and sufficient in the closed position is limited by the thickness of the door.

Similarly, in the retractable door, the flexible diaphragm is displaced in its vertical plane, since the diameter of the winding drum with the diaphragm wound varies depending on whether the diaphragm is in the open or closed position. It is therefore recommended that the upper part of the sliding track be wider so that the panel can be pulled without restriction and without friction.

SUMMARY OF THE INVENTION

The purpose of the guide device according to the invention is to overcome the above-mentioned drawbacks.

In accordance with the present invention, there is provided a guide for a flexible screen having horizontal transverse members to form a door panel which includes strips on vertical and opposing door columns that are opposed to each other to provide a guide track on each horizontal door post. cross members, each of said strips being tensioned and secured between two end points formed in respective door columns to allow each strip, when subjected to an external force, to resiliently deform and return undamaged to its original position.

The guide device of the present invention has two strips on each door pillar with an inclined portion to form the portions, a flexible guiding stowage guide and a straight vertical so that the strips are parallel to each other for the purpose of said flexible diaphragm in its vertical movement between the closed position and the open position.

The principle of the guide device according to the invention is furthermore that each strip has an inclined part between the retaining pin and the stop to form together with the second strip of the V-shaped space to accommodate the unwound flexible winder door screen if obstruction prevents it from falling.

According to the present invention, the guiding device further comprises the fact that each strip has a first oblique portion between the retaining pin and the stop and a second oblique portion between the stop and the other central stop to form together with a second strip of gradually opening space , consisting of organ style, when they are closed.

According to the present invention, the guide device is provided with strips having a width dependent on the width of the flexible curtain of the door.

The guide device according to the invention is provided with stops on which the belts rest.

The guide device according to the invention has a distance d between two strips, in particular in their straight vertical part, which is close to the thickness of the flexible diaphragm.

The guide device according to the present invention is further provided with strips, each of which is capable of resiliently deforming around its vertical axis when subjected to an external force. and on the other hand about an axis perpendicular to this vertical axis, being able to return undamaged to its original position.

The present invention also relates to a flexible curtain door comprising vertical and opposing door pillars on which strips are mounted that are opposed to each other to provide a guide track on each horizontal cross member door and the flexible curtain of said strips tensioned and secured between two end points formed on the door columns to allow each strip, when subjected to external force, to resiliently deform and return undamaged again to its original position.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention and its features and advantages will be explained in more detail below with reference to non-limiting examples thereof, the description of which will be given, for purposes of better understanding, with reference to the accompanying drawings, in which:

Fig. 1 is a front view of a retractable door with a flexible door curtain in accordance with the present invention;

Fig. 2 is an axonometric view of the vertical side door pillar of Fig. 1 provided with a guide device according to the present invention;

Fig. 3 is a front view similar to that of Fig. 1 but showing a flexible curtain of the door which is prevented by an obstacle in its movement;

, r + 6 ^ ~ 0 ^r 1 • · * · • · * · · · Fig. 4 is a perspective view similar to FIG. 2, but showing unwinding the flexible curtain at the upper end of the guide means according to the present invention, when said flexible diaphragm is blocked by an obstacle in its downward movement;

Fig. 5 shows a front view of a door according to the invention with a flexible door curtain, folded in an organ-like manner, in the closed position;

Fig. 6 is an axonometric view showing the door pillar of Fig. 5 provided with a guide device according to the present invention in the closed position;

Fig. 7 is a front view showing the door of Fig. 5 in the open position; and Fig. 8 is an axonometric view showing one door pillar of Fig. 7 provided with a guide device according to the present invention in the open position.

DETAILED DESCRIPTION OF THE INVENTION

1 and 2 show a retractable door 1 provided with vertical side door posts 2 and 3 which are fixed in the usual manner to the vertical walls of the opening to be closed. The opposing vertical side door posts 2 and 3 are connected to each other in the upper part by a roller winding drum 4 for a flexible door curtain 5.

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The vertical side door posts 2 and 3 are provided with an integral guide device 5 for the flexible door screen 5 for its movement between the closed position and the open position.

It can be seen here that the flexible door screen 5 is provided with sleeves 5a in which horizontal reinforcing transverse members 5b are inserted, the ends of which are housed in guide devices 16 mounted on each vertical side door posts 2 and 3 (see FIG. 2).

Each guide device 6 is provided with two strips 6a and 6b which are opposed on both sides of the flexible door curtain 5 and thus form on each vertical side door pillar 2 and 3 a guide track 6c for the flexible door curtain 5 and for its horizontal reinforcing cross members 5b.

For the sake of simplicity and better understanding, only the guide 6 on the vertical side door pillar 2 will be described, since the second guide 6 on the second vertical side door pillar 3 is completely identical.

Each strip 6a and 6b of the guide 6 is provided at its end with a loop 6d and 6e, each loop 6d and 6e being attached to an end point formed by a retaining pin 6f and 6g formed on a vertical side door post 2. These retaining pins 6f and 6g are arranged opposite to each other and in the vicinity of a roller winding drum 4 carrying a flexible door curtain 5 of the winding door 1.

At the bottom of the vertical side door post 2 are provided two tensioners 6h and 6i, which form the second end of the guide 6, which respectively holds the other ends than the ends of these.

For example, the two tensioners 6h are provided with strips 6a and 6b lying on the opposite side, the strips 6a and 6b provided with loops 6d and 6e and 6i are positioned at the same level and are a hexagonal outer profile so that a hexagon wrench can be used to tighten each belt 6a and 6b between its two end points, formed by holding pins 6f and 6g and by tensioners 6h and 6i, respectively.

Between these end points of the guide device 6, two opposing stops 6j and 6k are arranged on which the respective strips 6a and 6b rest.

These stops 6j and 6k are arranged offset from the holding pins 6f and 6g on the one hand and on the same vertical axes on which the tensioners 6h and 6i also lie. This arrangement allows the belts 6a and 6b to run obliquely in a certain part for the purpose of providing a storage space E for the flexible door curtain 5 in the vicinity of the roller reel 6, the function of which will be described later.

The strips 6a and 6b extend below said receptacle E directly and vertically so that the strips 6a and 6b are parallel to one another for guiding the flexible door screen 5 as it moves vertically between the closed position and the open position.

As a result, each strip 6a and 6b has an inclined portion between respective retaining pins 6f and 6g and respective stops 6j and 6k, so that there is a storage space E which is preferably V-shaped.

Figures 3 and 4 show the flexible door curtain 5 of the retracting door 1, which is prevented from moving downwards by the obstacle Za Under these circumstances, the flexible door curtain 5 continues to unwind and is stored in the guide compartment E device 6. Thereafter, it is only necessary to change the direction of rotation of the roller winding drum 6 in order to rewind the flexible door curtain 5.

Figures 5 and 8 show an organ-style door 1 'having two vertical side door posts 2' and 3 'attached to the vertical walls of the opening to be closed.

The opposing vertical side door pillars 2 'and 3' are connected to each other in the upper part of the door 1 by a winding drum 4 'and a transverse fixed rod 4 ^z a, on which a flexible curtain 5' is fixed.

The vertical side door pillars 2 'and 3' are provided with an integral guide 6 which is similar to the above-described guide 6 for the winding door 1. This guide 6 is provided with a guide track 6c for guiding the flexible curtain 5 'as it moves between closed position and open position.

The flexible diaphragm 5 'is provided with sleeves or bushings 5' and with apertures 5 'c for the passage of the horizontal reinforcing cross members 5 ^of b. With the winding drum 4 /. These tension bands 5 'e are each guided on a horizontal transverse reinforcing member 5b via a driver 5'f strip disposed in the openings of sleeves or 5'c • • · · ^of packages 5 in. There can also be arranged in the bushing 5' and without holes in which other horizontal reinforcing cross members 5by are inserted.

The above described flexible curtain drive system 5 'allows it to be stacked in the open state at the top of the door 1' in the open state.

For the sake of simplicity and better understanding, only the guide 6 on the vertical side door pillar 2 'will be described since the second guide 6 mounted on the vertical side door pillar 3 is completely identical. In addition, only new additional parts of the guide device 6 which have not been used in the winding door 1 will be described here.

Thus, the strips 6a and 6b are fastened and looped by their loops 6d and 6e between two end points formed on the vertical side door post 2 ', i.e. between the retaining pins 6f and 6g and the tensioners 6h and 6i.

Each belt 6a and 6b is supported between the retaining pins 6f and 6g and the tensioners 6h and 6i by a first upper stop 6j and 6k and a second central stop 61 and 6m, respectively.

The strips 6a and 6b have an initial inclined portion between the retaining pins 6f and 6g and the first upper stops 6j and 6k, followed by a second inclined portion lying at a different angle between the first upper stops 6j and 6k and the second center stops 61 and 6m.

This arrangement allows the strips 6a and 6b to define between them a gradually opening space S intended to accommodate the folds of the flexible screen 5 'when it is opened (see Figs. 7 and 8).

The strips 6a and 6b have straight vertical sections below the space S, i.e. the strips 6a and 6b are parallel to each other for the purpose of guiding the flexible screen 5 'as it moves.

It should be emphasized that the guide 6 incorporated in the vertical side door pillars 2, 2 'and 3, 3' of the door 1, 1 is completely accessible without the need to disassemble them and is easy to clean, especially when where the door is intended for use in an environment where food is handled.

In addition, the guiding device 6 mounted in the door χ and 1 'is provided with strips 6a and 6b, the width of which depends on the width of the flexible curtain 5 and 5' to be moved in the door.

The guide device 6 has a distance d on one vertical side column of the door, and in particular in its straight vertical section, between the strips 6a and 6b, which is close to the thickness of the flexible curtain 5 and 5 '.

It should be pointed out here that the guide device 6 is provided with strips 6a and 6b, each of which, when subjected to an external force, is capable of elastically deforming, both around its vertical axis and perpendicular to its vertical axis, whereupon it is able to return completely undamaged to its original position.

This is due to the fact that the relative elastic deformation of the strips 6a and 6b when the flexible curtain 5 and 5 'is blocked or when side shocks occur allows the horizontal reinforcing transverse members to move from their position without risk of damaging the transverse members or strips.

In addition, the guide device 6 contributes to the reduction of operating noise, since there is no metal-to-metal contact, as is the case with other doors.

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PATE N T 0 0 K Y 1. Guide mechanism for flexible screen (5, 5 ') provided horizontal transverse members (5b, 5'b, 5 (d) for creation door panel (1, 1 ') v y z c í se by that it contains on vertical and opposing door columns (2,3 '; 2', 3 ') door (1, 1 ') belts (6a, 6b) that are orderly vzáj emně against yourself for creation guide

tracks (6c) on each door post for the flexible screen (5, 5) and horizontal cross members (5b, 5'b, 5'd), each of said strips being tensioned and secured between two end points (6f, 6h); 6g, 6i) formed in the door columns (2, 3; 2 ', 3') to allow each strip, when subjected to external force, to resiliently deform and return undamaged to its original position.

Guide device according to claim 1, characterized in that on each door pillar (2, 3; 2 ', 3') of the door (1, 1 ') there are two strips (6a, 6b) with an inclined part for forming a storage space (2). E, S) for the flexible diaphragm (5, 5 ') and with a straight vertical portion, so that the strips (6a, 6b) are parallel to each other for guiding said flexible diaphragm (5, 5') in its vertical movement between closed position and open position position.

Guide device according to claim 2, characterized in that each strip (6a, 6b) has an angled part between the retaining pin (6f, 6g) and the stop (6j, 6k) to form together with the second strip of the letter-shaped space (E). V to accommodate the unwound flexible curtain (5) of the winding door (1) if the obstacle (7) prevents it from falling.

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A guide device according to claim 2, characterized in that each strip (6a, 6b) has a first inclined part between the retaining pin (6f, 6g) and the stop (6j, 6k), and between the stop (6j, 6k) and another central by a stop (61, 6m) a second inclined portion to form together with the second strip of a gradually opening space (S) for storing the folds of the flexible curtain (5 ') of the door (1) consisting of an organ-like style when closed.

5. Guide tract according to claim 1 mark ící se by the belts (6a, 6b) have width dependent width of flexible curtain (5, 5 ' ) of doors (1, 1 ') ) · 6. Guide tract according to claim 1 mark ící se that is provided stoppers (6j, 6k, 61, 6m) covered with belts (6a, 6b) support. 7. Guide tract according to claim 2 mark ící se that between two belts (6a, 6b) is in particular their straight vertical portions distance (d), 5 '). which is close to the thickness flexible curtains (5, 8. Guide tract according to claim 1 mark ící se that is provided belts (6a, 6b), each one is capable, if it is subjected external action forces, elastically deform both around yours vertical axes, and both around axes perpendicular to this vertical axis

being able to return undamaged to its original position.

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• • • • · · • · • · • • · · • 15 Dec • • · · • · · · · Doors with flexible curtain marked .mu.Ci s e that contain vertical and opposite door columns ', 3') on which they are fastened with belts 6a, 6b , which

are opposed to each other to form a guide track (6c) on each door post for horizontal cross members (5b, 5'b, 5'd) and a flexible screen (5, 5 '), each of said strips (6a, 6b) tensioned and secured between two end points (6j [sic], 6h; 6g, 6i) formed on the door columns to allow each strip, when subjected to external force, to resiliently deform and return undamaged again to its original position.

Claims (9)

A guide device for a flexible diaphragm (5, 5 ') provided with horizontal cross members (5b, 5'b, 5'd) for forming a door panel (1,1'), characterized in that it comprises and opposing door pillars (2, 3; 2 ', 3') of the door (1, 1 ') by strips (6a, 6b) that are opposed to each other to form a guide track (6c) on each door pillar for the flexible screen (6a, 6b). 5, 5 ') and horizontal cross members (5b, 5'b, 5'd), each of said strips being tensioned and secured between two end points (6f, 6h; 6g, 6i) formed in the door columns (2). 3; 2 ', 3') to allow each strip, when subjected to external force, to resiliently deform and return undamaged to its original position. The guide device according to claim 1, characterized in that it has two strips (6a, 6b) with an inclined part on each door pillar (2, 3; 2 ', 3') of the door (1, 1 ') to form a storage space (6). E, S) for the flexible diaphragm (5, 5 ') and with a straight vertical portion, so that the strips (6a, 6b) are parallel to each other for guiding said flexible diaphragm (5, 5') in its vertical movement between closed position and open position position. Guide device according to claim 2, characterized in that each strip (6a, 6b) has an angled part between the retaining pin (6f, 6g) and the stop (6j, 6k) to form together with the second strip of the letter-shaped space (E). V to accommodate the unwound flexible curtain (5) of the winding door (1) if the obstacle (7) prevents it from falling. 14 • · Guide device according to claim 2, characterized in that each strip (6a, 6b) has a first oblique part between the retaining pin (6f, 6g) and the stop (6j, 6k), and between the stop (6j, 6k) and another central by a stop (61, 6m) a second inclined portion to form together with the second strip of a gradually opening space (S) for storing the folds of the flexible curtain (5 ') of the door (1) consisting of an organ-like style when closed. Guide device according to claim 1, characterized in that the strips (6a, 6b) have a width dependent on the width of the flexible curtain (5, 5 ') of the door (1, 1'). Guide device according to claim 1, characterized in that it is provided with stops (6j, 6k, 61, 6m) on which the strips (6a, 6b) rest. Guide device according to claim 2, characterized in that a distance (d), 5 ') is provided between the two strips (6a, 6b), in particular in their straight vertical part. which is close to the thickness of the flexible screen (5, Guide device according to claim 1, characterized in that it is provided with strips (6a, 6b), each of which, when subjected to an external force, is capable of resiliently deforming both around its vertical axis and around its vertical axis. axis perpendicular to this vertical axis, being able to return undamaged to its original position. 15 Dec • · · · · · A door with a flexible curtain, characterized in that it comprises vertical and opposing door pillars (2, 3; 2 ', 3') on which strips (6a, 6b) are arranged, which are arranged opposite one another to form a guide track (6c) on each door post for horizontal cross members (5b, 5'b, 5'd) and a flexible screen (5, 5 '), each of said strips (6a, 6b) being tensioned and secured between two end points (6j [sic], 6h; 6g, 6i) formed on the door columns to allow each web, when subjected to external force, to resiliently deform and return undamaged again to its original position.